EP0975158A1 - Audioquellenauswahlschaltung - Google Patents
Audioquellenauswahlschaltung Download PDFInfo
- Publication number
- EP0975158A1 EP0975158A1 EP98113600A EP98113600A EP0975158A1 EP 0975158 A1 EP0975158 A1 EP 0975158A1 EP 98113600 A EP98113600 A EP 98113600A EP 98113600 A EP98113600 A EP 98113600A EP 0975158 A1 EP0975158 A1 EP 0975158A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- source
- signals
- audio
- mode
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
Definitions
- the invention relates to an audio source selection circuit for an audio signal processor.
- An audio signal processor is for example in the Micronas Intermetall "MSP 3410D Multistandard Sound Processor Edition Jan. 15, 1998, Order No. 6251-422-3PD described in detail. That on page 14 4-5 block diagram "Audio Baseband Processing (DSP firmware)" contains a block “Channel Source Select", which in connection with the associated Circuit blocks is an example of such an audio source selection circuit.
- the known audio source selection circuits include one of one Control device controlled source selection device still for each output channel an output matrix. This is also dependent on the control device the signal type and the connected playback device controlled. Delivers one Audio source, for example, only a mono signal, then the output matrix ensures that the mono signal is on both channel lines. Returns the audio source, however Stereo signal, then the respective output matrix is switched transparently, both Signal components can therefore pass through the output matrix unhindered. If the Channel lines contain the A and B voice signal, then the respective Output matrix can only be switched transparently if a SCART socket connected. in the other cases both duct lines are either on the A- or switch B-voice signal.
- the processing device contains an automatic audio mode setting device which generates suitable intermediate channels from the source signals in accordance with a source and application-related mode and feeds the intermediate channels to the adjustable source selection circuit in order to select at least one of them as the output channel.
- a separate intermediate channel is formed for each sensible playback device, even if the respective playback device is not connected or available. For each of these intermediate channels, the individual settings made automatically.
- the respective signal type delivers for example a co-transmitted identification signal.
- Assignment between the respective output channel to which the playback device is connected, and the associated intermediate channel. This is by means of a simple programming, for example by means of a menu guide, via the Remote control device easily possible.
- Fig. 1 shows a known audio source selection circuit QW, as for example in the is described as part of an audio signal processor.
- a tuner T contained in a television receiver receives via a Antenna A is a television signal that contains the audio signal components in addition to the video signal contains. These are filtered out, digitized and as one audio component Demodulator D supplied.
- the demodulator D contains various devices for Demodulation of the audio component ak, which is related to the used Orient transmission standards.
- the audio information is on one first and a second sound carrier and with the NICAM standard on a first frequency-modulated sound carrier and as digital information on the actual NICAM channel, there is also the AM standard and, in particular in the USA, an FM / AM standard.
- each of these demodulators can act as an audio source be conceived, which emits source signals at its output.
- the FM demodulator corresponds to a first audio source Q1 and the NICAM demodulator a second audio source Q2.
- the source signals of the first audio source Q1 are Source signals F1, F2 and that of the second source Q2 the two NICAM signals NA, NB.
- the source signal F1 contains a mono signal; the NICAM signals NA, NB, however, only a separate right and left signal or separate Speech signals A, B or a mono signal in one channel, the other channel then contains no information.
- An identification signal provides what type of signals the respective source signals contain k, which is included in the audio component ak.
- This identification signal is in a Control device ST evaluates and generates control data stf for an FM matrix FMX in a processing device V.
- the FM matrix forms from the source signals F1, F2 a pair of signals corresponding to a first channel C1 on the two lines either the stereo or bilingual information broadcast on the transmitter side or on one Line containing the mono signal.
- the NICAM source signals NA, NB require such Matriculation not because the two channel information are transmitted separately as stated become. They thus immediately form a second channel C2.
- the processing device V is therefore transparent for channel C2.
- the first and second channels C1, C2 feed an adjustable source selection circuit Qs selects those signals from the supplied signal pairs, ultimately the signals Output channels should form Co1, Co2, Co3.
- a first Output channel Co1 to connect a right / left pair of speakers then at the presence of bilingual signals A, B from the first or second channel C1, C2 either only the A or only the B speech signals switched to the pair of speakers become.
- This switchover takes place in an output matrix M1, for example by that the signal of one channel line is switched to both outputs of channel Co1.
- the first channel C1 delivers a stereo signal, then the output matrix M1 be made transparent.
- the situation is similar when a Co2 is connected to the output channel Headphones should be connected.
- the required switches are then made performed by a second output matrix M2. Is connected to the third output channel Co3 a SCART socket connected, then a third output matrix M3 leads associated switches.
- the output matrices are controlled via matrix control data stm from the control device ST.
- the adjustable source selection circuit Qs either selects the first channel C1 in FIG. 1 or the second channel C2 and then outputs their signal pairs to the first, second and third output matrix M1, M2, M3 further.
- the selection of the first or second channel C1, C2 takes place via source control data stq from the control device ST.
- the programming the control device ST takes place via a programming device I, for example can also be a remote control.
- the control data stx used for programming are stored in the control device ST and generate in connection with the the respective identification signal k the control data stf, stq, stm.
- the demodulator D again contains one as the first source Q1 FM demodulator and as a second source Q2 a NICAM demodulator, the associated Source signals F1, F2, NA, NB are fed to a processing device V, which except an FM matrix, not shown, FMX (as in FIG. 1), an automatic one Contains audio mode setting means that are appropriate from the source signals Intermediate channels Cz1, Cz2, Cz3, Cz4 according to a source and application-related Mode generated. There is a separate one for each common playback application Intermediate channel provided. Separate intermediate channels are also used Provided when special source-side properties have to be taken into account for example if one of the sources delivers a third speech signal.
- the necessary Switchings in the processing device V are stv by processing control data controlled from the control device ST.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Television Receiver Circuits (AREA)
- Stereophonic System (AREA)
- Electronic Switches (AREA)
Abstract
Description
die Verarbeitungseinrichtung eine automatische Audiomoduseinstelleinrichtung enthält, die aus den Quellensignalen geeignete Zwischenkanäle nach einem quellen- und anwendungsbezogenen Modus erzeugt und die Zwischenkanäle der einstellbaren Quellenauswahlschaltung zuführt, um daraus mindestens einen als Ausgangskanal auszuwählen.
Claims (3)
- Audioquellenauswahlschaltung (QW) für einen Audiosignalprozessor mitdadurch gekennzeichnet, daßEingängen für Quellensignale (F1, F2, NA, NB), die von mindestens einer Audioquelle (Q1, Q2,) bereitgestellt sind,einer Verarbeitungseinrichtung (V), die aus den Quellensignalen zusammengehörige Signalpaare bildet, die jeweils in einem Kanal zusammengefaßt sind,einer einstellbaren Quellenauswahleinrichtung (Qs), der eingangsseitig die Kanäle der Verarbeitungseinrichtung (V) zugeführt sind, undAusgängen, die mit Signalausgängen der einstellbaren Quellenauswahleinrichtung (Qs) gekoppelt sind und jeweils einen Ausgangskanal (Co1, Co2, Co3) bilden,die Verarbeitungseinrichtung (V) eine automatische Audiomoduseinstelleinrichtung enthält, die aus den Quellensignalen (F1, F2, NA, NB) geeignete Zwischenkanäle (Cz1, Cz2, Cz3, Cz4) nach einem quellen- und anwendungsbezogenen Modus erzeugt und die Zwischenkanäle der einstellbaren Quellenauswahlschaltung (Qs) zuführt, um daraus mindestens einen als Ausgangskanal (Co1, Co2, Co3) auszuwählen.
- Audioquellenauswahlschaltung (QW) nach Anspruch 1, dadurch gekennzeichnet, daß - ein erster, zweiter, dritter und vierter Zwischenkanal (Cz1, Cz2, Cz3, Cz4) vorhanden ist und der Modus des ersten Zwischenkanals (Cz1) insbesondere für einen Lautsprecherbetrieb und/oder eine Sprache A, der Modus des zweiten Zwischenkanals (Cz2) insbesondere für einen Kopfhõrerbetrieb und/oder eine Sprache B, der Modus des dritten Zwischenkanals (Cz3) insbesondere für die erforderlichen Stereo- oder Bilingualsignale einer Audio-Video-Signalschnittstelle (z.B. eine SCART-Buchse) und der Modus des vierten Zwischenkanals (Cz4) insbesondere für eine Wiedergabeeinrichtung einer gegebenenfalls vorhandenen dritten Sprache vordefiniert sind.
- Audioquellenauswahlschaltung (QW) nach Anspruch 2, dadurch gekennzeichnet, daß im ersten bis vierten Zwischenkanal (Cz1 bis Cz4) eine automatische Umschaltung vom Monomodus auf Stereomodus erfolgt, wenn die Quellensignale (F1, F2, NA, NB) Stereosignale enthalten, und je nach dem Zwischenkanal eine Umschaltung auf einen A- oder B- oder A/B- Sprachenmodus, wenn die Quellensignale (F1, F2, NA, NB) getrennte Sprachensignale (A, B) enthalten.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98113600A EP0975158B1 (de) | 1998-07-21 | 1998-07-21 | Audioquellenauswahlschaltung |
| DE59814289T DE59814289D1 (de) | 1998-07-21 | 1998-07-21 | Audioquellenauswahlschaltung |
| KR1019990028850A KR20000022665A (ko) | 1998-07-21 | 1999-07-16 | 음성 소스 선택 회로 |
| US09/357,006 US7162038B1 (en) | 1998-07-21 | 1999-07-19 | Audio source selection circuit |
| JP11205799A JP2000174719A (ja) | 1998-07-21 | 1999-07-21 | オ―ディオソ―ス選択回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98113600A EP0975158B1 (de) | 1998-07-21 | 1998-07-21 | Audioquellenauswahlschaltung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0975158A1 true EP0975158A1 (de) | 2000-01-26 |
| EP0975158B1 EP0975158B1 (de) | 2008-09-17 |
Family
ID=8232321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98113600A Expired - Lifetime EP0975158B1 (de) | 1998-07-21 | 1998-07-21 | Audioquellenauswahlschaltung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7162038B1 (de) |
| EP (1) | EP0975158B1 (de) |
| JP (1) | JP2000174719A (de) |
| KR (1) | KR20000022665A (de) |
| DE (1) | DE59814289D1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435992B1 (ko) * | 2002-01-29 | 2004-06-12 | (주)솔다정보기술 | 다채널 오디오 디텍터의 신호전달 장치 및 방법 |
| TWI299859B (en) * | 2004-12-30 | 2008-08-11 | Tatung Co Ltd | Method for recording a selectable audio source and annotating the audio to a picture in a portable device |
| US8041052B2 (en) * | 2007-03-08 | 2011-10-18 | Stmicroelectronics, Inc. | Circuit for priority selection of audio signals |
| US20100252450A1 (en) * | 2008-04-09 | 2010-10-07 | Riehl Bill L | Electrode and sensor having carbon nanostructures |
| JP5541360B2 (ja) | 2010-06-25 | 2014-07-09 | 富士通株式会社 | 画像処理装置および画像処理方法 |
| TWI566173B (zh) * | 2015-12-29 | 2017-01-11 | 瑞軒科技股份有限公司 | 音訊播放裝置及方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55128976A (en) * | 1979-03-27 | 1980-10-06 | Matsushita Electric Ind Co Ltd | Television multiple voice switching device |
| DE3222806A1 (de) * | 1982-06-18 | 1983-12-29 | Loewe Opta Gmbh, 8640 Kronach | Schaltungsanordnung zum anschalten eines fernsehempfangsgeraetes an ein bildaufzeichnungs- und/oder bildwiedergabegeraet |
| EP0464328A2 (de) * | 1990-06-30 | 1992-01-08 | Samsung Electronics Co. Ltd. | Verfahren zur Untersuchung von Mehrtonrundfunk und Vorrichtung in einem NICAM-Rundfunkempfänger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0865799A (ja) * | 1994-02-25 | 1996-03-08 | Sony Electron Inc | モノ/ステレオ切り替え回路 |
| EP0827282B1 (de) | 1996-08-29 | 2004-12-22 | Micronas GmbH | Störstrahlreduzierende Anschlusskonfiguration für eine integrierte Schaltung |
| DE59710047D1 (de) * | 1997-04-19 | 2003-06-12 | Micronas Semiconductor Holding | Digitaler Tonprozessor |
| US6052471A (en) * | 1998-05-08 | 2000-04-18 | Sony Corporation | Smart audio receiver that automatically select an input audio source |
-
1998
- 1998-07-21 DE DE59814289T patent/DE59814289D1/de not_active Expired - Lifetime
- 1998-07-21 EP EP98113600A patent/EP0975158B1/de not_active Expired - Lifetime
-
1999
- 1999-07-16 KR KR1019990028850A patent/KR20000022665A/ko not_active Ceased
- 1999-07-19 US US09/357,006 patent/US7162038B1/en not_active Expired - Fee Related
- 1999-07-21 JP JP11205799A patent/JP2000174719A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55128976A (en) * | 1979-03-27 | 1980-10-06 | Matsushita Electric Ind Co Ltd | Television multiple voice switching device |
| DE3222806A1 (de) * | 1982-06-18 | 1983-12-29 | Loewe Opta Gmbh, 8640 Kronach | Schaltungsanordnung zum anschalten eines fernsehempfangsgeraetes an ein bildaufzeichnungs- und/oder bildwiedergabegeraet |
| EP0464328A2 (de) * | 1990-06-30 | 1992-01-08 | Samsung Electronics Co. Ltd. | Verfahren zur Untersuchung von Mehrtonrundfunk und Vorrichtung in einem NICAM-Rundfunkempfänger |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000022665A (ko) | 2000-04-25 |
| US7162038B1 (en) | 2007-01-09 |
| EP0975158B1 (de) | 2008-09-17 |
| DE59814289D1 (de) | 2008-10-30 |
| JP2000174719A (ja) | 2000-06-23 |
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